采用EWMA模型预测动态变化的方差-协方差矩阵，从实证的角度得到更精准的动态迁移相关系数矩阵。

Using EWMA to forecast the portfolio's dynamic transferred variance-covariance matrix, we can get more reasonable and precise dynamic transferred coefficient matrix.

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对舞毒蛾卵块的种群动态与温度、湿度等气象因子相关分析。找出了相关系数较大的因子。

Through the relationship analysis between the egg block population and the meteorological factors such as temperature and relative humidity, the good correlation factors are found.

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不同林分的抗蚀指数与时间的动态模拟关系为二次幂函数曲线，相关系数0.9以上。

The analog equation between soil erosion resistance index and time is quadratic power function curve, whose correlation coefficient is above 0.9.

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